Hedgehog Gall - Andricus lucidus f. agamic
The gall is formed on oak buds and occasionally acorns. It is a round multi-chambered gall covered in numerous blunt-tipped spines, up to 2.5cm across. It is reddish when forming, then green and finally brown and woody.
The agamic galls formd by Andricus grossulariae are similar but usually larger, with fewer, thicker spines.
Photograph of the gall on the host.
oak trees
First recorded in the UK in SE England in late 20th century (ref: Redfern & Shirley 2023)
Rare. The Burrough Hill gall is believed to be the first confirmed record for the species in VC55
See Redfern & Shirley 2023
Melinda Bell
Burrough Hill Covert
26 October 2025
approx 20mm diameter
Melinda Bell
Burrough Hill Covert
26 October 2025
knobbed spikes
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Species profile
- Common names
- Hedgehog Gall Causer
- Species group:
- insect - hymenopteran
- Kingdom:
- Animalia
- Order:
- Hymenoptera
- Family:
- Cynipidae
- Records on NatureSpot:
- 1
- First record:
- 26/10/2025 (Bell, Melinda)
- Last record:
- 26/10/2025 (Bell, Melinda)
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